Sitting in his "reason" chair.
"...until he figured out the reason for whatever it was that snagged his curiosity. He had once sat in the chair for three days straight, trying to figure out why people were always arguing over how many stars there were."
Sitting on his "cloud rock". Often naked, I might add.

Favorite Tolkien character:

Boromir.
He reminds me of myself. Good intentions, but very fallible.
I've always thought of his death as very heroic.